酸碱指示剂变色是由于其本身为弱的()或(),它们在溶液中或多或少地离解成离子,因其分子和离子具有(),因而具有不同的颜色。
参考答案:有机酸;弱的有机碱;不同的结构
—You wouldn't be interested in two tickets for tonight's concert, would you?
—_______, I wouldn't.
A.Not much
B.very much
C.too much
D.that much
理性主义模型认为决策者是如何将其理性主义的决策活动贯穿于整个政策过程中的?